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Chinese Physics B 2014年第9期23卷 585-589页

作者：卓祖亮王永生何大伟富鸣 Key Laboratory of Luminescence and Optical Information of the Ministry of Education Beijing Jiaotong University

The performance of P3HT：PCBM solar cells was improved by Anode modification using spin-coated Tb（aca）3phen ultrathin films. The modification of the Tb（aca）3phen ultrathin film between the indium tin oxide （ITO） anode and the PEDOT：PSS layer resulted in a maximum power conversion efficiency （PCE） of 2.99% compared to 2.66% for the reference device, which was due to the increase in the short-circuit current density （Jsc）. The PCE improvement could be attributed to the short-wavelength energy utilization and the optimized morphology of the active layers. Tb（aca）3phen with its strong down-conversion luminescence properties is suitable for the P3HT：PCBM blend active layer, and the absorption region of the ternary blend films is extended into the near ultraviolet region. Furthermore, the crystallization and the surface morphol- ogy of P3HT：PCBM films were improved with the Tb（aca）3phen ultrathin film. The ultraviolent-visible absorption spectra, atomic force microscope （AFM）, and X-ray diffraction （XRD） of the films were investigated. Both Anode modification and short-wavelength energy utilization using Tb（aca）3phen in P3HT：PCBM solar cells led to about a 12% PCE increase.

关键词： P3HT：PCBM Anode modification polymer solar cells

Enhanced performance in organic photovoltaic devices with a KMnO_4 solution treated indium tin oxide Anode modification

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Chinese Physics B 2012年第12期21卷 526-530页

作者：杨倩倩赵谡玲徐征张福俊闫光孔超樊星张妍斐徐叙瑢 Key Laboratory of Luminescence and Optical Information(Beijing Jiaotong University) Ministry of Education Institute of Optoelectronics Technology Beijing Jiaotong University

The properties of poly（3-hexylthiophene）：（6,6）-phenyl C61 butyric acid methyl ester （P3HT：PCBM） organic pho- tovoltaic devices （OPVs） with an indium tin oxide （ITO） anode treated by a KMnO4 solution are investigated. The optimized KMnO4 solution has a concentration of 50 rag/L, and ITO is treated for 15 min. The modification of ITO anode results in an enhancement of the power conversion efficiency （PCE） of the device, which is responsible for the increase of the photocurrent. The performance enhancement is attributed to the work function modification of the ITO substrate through the strong oxygenation of KMnO4, and then the charge collection efficiency is improved.

关键词： organic photovoltaic devices indium tin oxide Anode modification KMnO4

Polyelectrolytes/α-Fe_(2)O_(3) modification of carbon cloth anode for dealing with food wastewater in microbial fuel cell

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Carbon Resources Conversion 2020年第1期3卷 76-81页

作者： Meicong Wang Zinuo Wang Fei Hu Liping Fan Xuejun Zhang College of Environment and Safety Engineering Shenyang University of Chemical TechnologyShenyang 110142China

In this paper,the layer-by-layer assembled polydimethyl diallyl ammonium chloride(PDADMAC),poly sodium-p-styrene sulfonate(PSS)and α-Fe_(2)O_(3) modified carbon cloth(CC),nitric acid activated CC,blank CC were used as anodes in two-chamber microbial fuel cell(MFC)for dealing with food wastewater.The electricity production of microbial fuel cell increased dramatically after modification of the anode.When four double layers of PDADMAC and PSS and one layer α-Fe_(2)O_(3) was assembled on CC(CC/(PDADMAC/PSS)4/α-Fe_(2)O_(3)),the highest current 0.48 mA and the highest power density 0.285 W/m2 were obtained.The electrode process of CC/(PDADMAC/PSS)4/α-Fe_(2)O_(3) anode in MFC was controlled by the electron production step,while the blank CC anode was an electron diversion-controlled process.The high electricity production of nitric acid treated CC anode in MFC was due to the amino group after activation,which made microbes easy to anchor on the anode surface.The effect of polyelectrolytes and α-Fe_(2)O_(3) on the performance improvement of MFC was due to both physical and chemical properties of the anode surface.

关键词： Microbial fuel cells Polyelectrolytes α-Fe_(2)O_(3) Anode modification Carbon cloth

Performance of anaerobic fluidized bed microbial fuel cell with different porous anodes

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Chinese Journal of Chemical Engineering 2020年第3期28卷 846-853页

作者： Xiuli Zhang Chunhu Li Qingjie Guo Kelei Huang Key Laboratory of Marine Chemistry Theory and Engineering Technology of Ministry of Education College of Chemistry and Chemical EngineeringOcean University of ChinaQingdao 266100China Key Laboratory of Clean Chemical Processing of Shandong Province College of Chemical EngineeringQingdao University of Science and TechnologyQingdao 266042China

anode materials were used to construct microbial fuel cells(MFCs),and the characteristics of the anodes were important for successful applied performance of the MFCs.Via the cyclic voltammetry(CV)method,the experiments showed that 5 wt%multiwalled carbon nanotubes(MWNTs)were optimal for the PANI/MWNT film anodes prepared using 24 polymerization cycles.The maximum output voltage of the PANI/MWNT film anodes reached 967.7 mV with a power density of 286.63 mW·m-2.Stable output voltages of 860 mV,850 mV,and870 mV were achieved when the anaerobic fluidized bed microbial fuel cell(AFBMFC)anodes consisted of carbon cloth with carbon black on one side,copper foam and carbon brushes,respectively.Pretreatment of the anodes before starting the AFBMFC by immersion in a stirred bacterial fluid significantly shortened the AFBMFC startup time.After the AFBMFC was continuously run,the anode surfaces generated active microbial catalytic material.

关键词： Circulating fluidized bed Multiphase flow Porous anodes Anode modification Electrochemistry

Room-temperature sputtered-SnO_(2) modified anode toward efficient TiO_(2)-based planar perovskite solar cells

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Science China(Technological Sciences) 2021年第9期64卷 1995-2002页

作者： LI Dan LI Yong LIU ZhiKe WANG DaPeng LIU ShengZhong(Frank) Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China

It is of the utmost importance to promote the charge transport and retard the heterojunction barrier in the functional layers and at their adjacent interfaces to pursuit excellent photovoltaic characteristics of the perovskite solar cells(PSCs). Here, roomtemperature sputtered-SnO_(2) films are introduced to modify FTO anode for improving carrier extraction and aligning energy band in the TiO_(2)-based planar PSCs. For the SnO_(2)-modified substrate with suitable sputtering duration, the following TiO_(2) film exhibits smoother surface roughness, less surface defects, and lower the trap-assisted interfacial recombination than that directly on the FTO, further facilitating the growth of perovskite grain size and promoting the extraction efficiency of charge carriers. On the basis of the optimized SnO_(2)(6 nm)/TiO_(2) stack layer as electron transport layer(ETL), the PSC exhibits an outstanding power conversion efficiency of 21.45%, which is much better than that of the single TiO_(2)-based device(19.68%). More importantly, the cell with the bilayer ETL shows a long-term stability against air, maintaining over 76% of its initial efficiency after 40 d. These achievements suggest that this study provides a feasible path to design energy level alignment and low temperature ETL for highly efficient and stable PSCs.

关键词： sputtered-SnO_(2) Anode modification bilayer ETL TiO_(2) PSC device